table{
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    margin: auto;
    padding: 0;
    border: 0;
    width: 80%;
    height: 150px;
}
tr, td {
    margin: 0;
    padding: 0;
    border: 0;
    height: 50px;
    text-align: center;
}
input{
    border-style: none;
    border-bottom-style: solid;
    border-bottom-width: 1px;
    border-bottom-color: lightgray;
    border-radius: 0;
    margin: 0;
    padding: 0;
    height: 40px;
    font-size: 20px;
    width:100%;
    height:100%
}
button{
    background: #2ECC71;
    border-style: none;
    border-radius: 0;
    margin: 0;
    padding: 0;
    color: white;
    font-size: 20px;
    width: 100%;
    height: 40px;
}
#errorDiv{
    margin: 0;
    padding: 0;
    border: 0;
    height: 50px;
}